Bug 94452

Summary: dEQP-GLES3.functional.negative_api.texture.generatemipmap fails
Product: Mesa Reporter: Kenneth Graunke <kenneth>
Component: Mesa coreAssignee: Kenneth Graunke <kenneth>
Status: RESOLVED FIXED QA Contact: mesa-dev
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 94448    

Description Kenneth Graunke 2016-03-09 01:08:45 UTC 
dEQP-GLES3.functional.negative_api.texture.generatemipmap currently fails.

genmipmap.c has a _mesa_is_valid_generate_texture_mipmap_internalformat function that implements some rules.  It appears that there is no text in the OpenGL specifications to justify this, but it was discussed in a Khronos internal bug:

https://cvs.khronos.org/bugzilla/show_bug.cgi?id=9471

However, ES 3.0 has well defined rules:
"If the levelbase array was not specified with an unsized internal format from table 3.3 or a sized internal format that is both color-renderable and texture-filterable according to table 3.13, an INVALID_OPERATION error is generated."

These rules need to be implemented (replacing the desktop GL rules), and would fix the test.
Comment 2 Kenneth Graunke 2016-03-19 06:55:43 UTC 
Fixed in master with:

commit 46610238e0a8db47c293f75ad8d667747d6256af
Author: Kenneth Graunke <kenneth@whitecape.org>
Date:   Tue Mar 15 00:41:16 2016 -0700

    mesa: Do proper format error checks for GenerateMipmap in ES 3.x.

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